Boeing Reports Progress on 787 Battery Fixes

By

Hiroyuki Kachi

April 27, 2013 6:02 a.m. ET

TOKYO—Boeing Co. said Saturday that modifications to the battery systems of its 787 Dreamliners were under way, and that work was nearly done on nine of the planes, although it didn't say to which airlines the planes belonged.

At a news conference a day after Japanese transportation authorities officially lifted the grounding of the Dreamliner the 787's chief engineer, Mike Sinnett, said more than 300 Boeing staff members had been working in 10 teams around the world to modify the aircraft's battery systems. The aircraft...